London on da Track and Wheezy, two of Thugger's closest collaborators, took up about half of the beats Slime Season 2, but the other producers are nothing to scoff at. In terms of placements -- largely because of their close work with Future -- no one has had a bigger year than either Metro Boomin or Southside. Both ATL hitmakers had a beat each on SS1 and they return to SS2 on the same track: "All Over."

The most exciting part of Young Thug's evolution in 2015 has been his ability to create "bangers" out of increasingly softer productions -- relying on subtle shifts in mood to suddenly employ an innovative flow. The shimmering keys from Metro go perfectly with Thug's luxury raps, and you know it's Southside bringing the slinky 808s. Southside also produced the tape's opener, "Big Racks," featuring Lil Uzi Vert. No one's matching the talent in ATL right now.

I'm swaggin' from head to toe, buzzin'I got so much weed in my blunt I can make a fucking mulletYou lil n*ggas is fake actors, we just call you puppetsI don't move unless it's 'bout money, I jump like ribbit